RHYNCHOTA.

HEMIPTERA-HOMOPTERA. Vou. II. Part 2.

BY

Pror. T. D. A. COCKERELL.

1899.

BIOLOGIA CENTRALI-AMERICANA.

ZOOLOGIA.

Class INSECEFA. Order RHYNCHOTA. Suborder HEMIPTERA-HOMOP'TERA (continued).

Fam, ALEURODIDA*.

The following species have been recorded from our region :—

ALEURODICUS, Dougl.

1. Aleurodicus dugesi. Aleurodicus dugesii, Ckll. Canad. Entom. 1896, p. 302.

Hab. Mexico: Guanajuato (Dugés).

2. Aleurodicus iridescens. Aleurodicus iridescens, Ckll. Psyche, 1898, p. 225.

Hab. Mexico: Tabasco (Townsend).

3. Aleurodicus mirabilis. Aleurodes mirabilis, Ckll. Psyche, 1898, p-225. Aleurodicus mirabilis, Ckll. Psyche, 1899, p. 360.

Hab. Muxico: Tabasco (Townsend); Minatitlan, on Anona, 1898 (Townsend).

ALEURODES, Amy. & Serv.

1. Aleurodes vinsonioides. Aleurodes vinsonioides, Ckll. Psyche, 1898, p. 225.

Hab. Mexico: Tabasco (Townsend). 9, Aleurodes nicotianz. Aleurodes nicotiane, Maskell, Trans. New Zeal. Inst. 1895, p. 436. Hab. Mexico: Guanajuato (Dugés). 3. Aleurodes erigerontis. Aleurodes erigerontis, Maskell, Trans. New Zeal. Inst. 1895, p. 429. Hab. Mexico: Escalon (Cockerell). See Ent. News, 1896, p. 247.

* By T. D. A. CockERELL. . BIOL. CENTR.-AMER., Rhynch. Homop., Vol. II. Pt. 2, December 1899. fi

Lo

HEMIPTERA-HOMOPTERA.

Fam. COCCID *. MONOPHLEBIN A.

MONOPHLEBUS, Leach.

[Liaveia, Signoret. ]

The supposed distinctions between Monophlebus (= Llaveia, Sign.) and Protortonia are due to the immaturity of the type-specimens of the latter group. Adults of Protortonia primitiva have 11-segmented antenne. See Proc. Acad. Nat. Sci. Phil. 1899, p. 259.

1..Monophlebus axinus. Llaveia axinus (Llave), Sign. Essai sur les Cochenilles, p. 404 (1875) ; Ckll. Can. Ent. 1897, p. 271. Coccus adipofera, Dondé Ruiz (Ibarra), La Emulacion (Merida, Yucatan), ii. pp. 174—180 (1879). Abstr. Scientific American, xli. p. 10 (1880) ; Sci. Amer., Suppl. no. 184 (July 1879) ; Gaea, Vi. pp. 563-566 (1870) ; Colonies and India, 26 April, 1879, p.9; Lotos, 1875 (?), pp. 199-200 ; Journ. Applied Science, x. pp. 24-25 (1879) (cf. Taschenberg, Bibl. Zool. ii. 1889, p. 1526). Hab. Mexico: Tlacotalpam (de fa Liave); between Salina Cruz and Tehuantepec in Oaxaca (Townsend) ; Yucatan, on Spondias (Dondé Ruiz).

This insect is coral-red ( 2 ) and is covered with a fine whitish powder. From the females is extracted 26 to 28 °/. of their weight of a bright yellow fat, which is said to be the most quickly drying oleaginous substance known.

Dr. A. Dugés has described a var. dorsalis, Nat. Mex. (2) i. p. 160 (1888).

2. Monophlebus bouvari. Ortonia bouvari, Sign. Essai sur les Cochenilles, p. 402 (1875).

Hab. GUATEMALA.

3. Monophlebus primitivus. Ortonia primitiva, Towns. Journ. N. Y. Ent. Soc. 1898, p. 169.

Hab. Mexico: Cuautla in Morelos (Koebele).

4. Monophlebus mexicanorum. Ortonia mexicanorum, Ckll. Aun. & Mag. Nat. Hist., June 1898, p. 430.

Hab. Mexico: Mixcoac (Koebele).

* By T. D. A. Cockzrern, Nearly all of the material of this family has passed through my hands. -A detailed list of Mexican Coccide, with food-plants and localities, was published by Prof. ©. H. T. Townsend in Journ. N. Y. Ent. Soc., Dec. 1897. Since then, forty new species have been described from Mexico in Journ. N. Y. Ent. Soc., Sept. 1898, Ann. & Mag. of Nat. History, June 1898, and Entomologist,’ June 1898. Iam responsible for the identification of the Panama species collected by Mr. Dolby-Tyler. In working over the

collection procured in 1898 by Prof. Townsend I have been assisted by Mr. P. J. Parrott, of the Kansas Agricultural College.—7. D A. C.

MONOPHLEBUS.—ICERYA. 3

The following males may belong to one or the other of the four species enumerated, and it is therefore inadvisable to name them :—

Monophlebus, sp.

3d. Expanse of wings about 16 millim. Head, body, legs, and antenne ferruginous; eyes bright scarlet; abdomen thinly covered with cottony secretion, and presenting eight long fleshy caudal processes covered with short hairs. Wings black, with the usual broad red costa and two white streaks.

Hab. Panama: Volcan de Chiriqui 3000 feet (Champion).

In size and coloration resembles the African UM. raddoni, Westw., but that has the thoracic dorsum piceous. This and the two following males are particularly interesting, because they show that the Monophlebus-like insects of Central America, variously referred to Ortonia and Llaveia, have indeed in the male, as well as in the female, the structure of true Monophlebus. As four species are known from our region from the female only, it is probable that some or all of these males belong with them; hence no

names are proposed for the males, although several species have been described in former years from the male alone.

Monophlebus, sp.

3. Expanse about 10 millim. Reddish; eyes, thoracic band, ventral surface of thorax, and legs black; antenne very dark brown; abdomen bright scarlet, practically naked, with only four long fleshy processes, ‘which are brown. Wings black, with a red costa, but no white streaks.

Hab. Panama: Volcan de Chiriqui 3000 feet (Champion).

This departs from typical Monophlebus in having only four (instead of eight) caudal

processes. It may possibly be the male of Protortonia, in which case that name might well be used in a subgeneric sense,

Monophlebus, sp.

3. Expanse about 10 millim. Dull red; head, except the occiput, antenne, legs, and pro- and mesothorax black; abdomen with eight fleshy processes, the first shorter than the rest; wings black, with the usual red costa, and two white lines, which are longer and finer than in the large species from Chiriqui.

Hab. Mexico: Acaguizotla in Guerrero 3500 feet (H. H. Smith).

ICERYA, Sign. 1. Icerya montserratensis. Icerya montserratensis, Riley & Howard, Insect Life, iti. p. 99 (1890).

Hab. Mexico: Izamal in Yucatan (Townsend), Tampico (Townsend); Panama, Colon (S. A. Davis).

2. Icerya palmeri. Icerya palmeri, Riley & Howard, Insect Life, ii. p. 103 (1890) (young) 5 Townsend, Journ. N. Y. Ent. Soc. 1898, p. 167 (adult).

Hab. Mexico: Guaymas (Palmer, Koebele). $1 2

4 HEMIPTERA-HOMOPTERA.

8. Icerya. purchasi. Icerya purchasi, Maskell, Trans. New Zeal. Inst. xi. p. 221 (1878). Hab. Mexico: Guaymas (Townsend); Hermosillo (Townsend); Magdalena (Towns- end); Monterey (Lownsend).

This insect exists in two forms, which are probably distinct species. The form maskelli, Ckll., is found near Guaymas, and the form crawiz at Magdalena. See Townsend, Journ. N. Y. Ent. Soc., Sept. 1898, pp. 165-167.

Subg. Proticerya, Ckll. 4, Icerya littoralis. . Icerya littoralis, Ckll. Ann. & Mag. Nat. Hist., June 1898, p. 429.

Hab. Mexico: El Faro near Frontera (Townsend); Tehuantepec city (Townsend).

A var. mimose, Ckll., from Las Minas near Frontera (Townsend), has been described by me (loc. cit.).

5. Icerya rileyi. Icerya rileyi, Ckll. Psyche, Dec. 1895, Suppl. p. 15. Hab. Mexico: Juarez in Chihuahua (Cockerel/).

Originally described from New Mexico.

CRYPTICERYA, Ckli.

1. Orypticerya rose. Icerya rose, Riley & Howard, Insect Life, ii. p. 333, iii. p. 98.

Hab. Mexico: Tehuantepec city (Townsend). mexicana, Ckll. & Parrott, subsp. n.

9. About 7 millim. long., 5 broad, 44 high. Dark red, stained with black in the dorsal region, more or less covered with white powder ; three longitudinal series (one dorsal, the others lateral) of rather large patches of bright sulphur-yellow secretion, extending over the anterior half of the insect. Legs black.

Newly-hatched larva similar to that of C. rose, but the lateral hairs before the six long caudal ones are not usually so long, and there are two very long hairs-on each side of the body in the cephalothoracic region,

The following measurements (in ,) will assist identification :—

Larva. Legs: coxa 70-74; femur with trochanter 231; tibia 239-281; tarsus 165; claw 38-41.

Larva, Antenne: segments (1) 39-49, (2) 57-66, (3) 66-74, (4) 53-57, (5) 49, (6) 149-165.

Larva. Median caudal hairs 994-1143 »; second caudal hairs 828-994 p3; anterior long cephalothoracic hairs 496-579 ; posterior long cephalothoracic hairs 463-496 y.

Adult female. Antennal segments (1) 132, (2) 99, (3) 107-115, (4) 82-99, (5) 78-82, (6) 54-66, (7) 54-66, (8) 82, (9) 82, (10)?, (11) 198. Legs: coxa 248-265, femur with trochanter 695-748, tibia 636-666, tarsus 331, claw 82. There are dermal hairs of two sizes—the larger 298 p, the shorter 66 fle

Hab. Mexico: Aguas Calientes, May 1, 1898, on Prosopis, sp. (Townsend).

This subspecies has the yellow spots of C. australis, Mask., but differs from that insect and from C. rose in the lateral hairs of the larva.

ORTHEZIA.—PSEUDOCOCCUS, ‘5

ORTHEZIINA.

ORTHEZIA, Bose.

1. Orthezia sonorensis. Orthesia sonorensis, Ckll. Bull. 4, Techn. Ser., Div. Ent., U. S. Dept. Agric. (1896) p. 38.

Hab. Mexico: San Ignacio in Sonora (Townsend).

2. Orthezia insignis. Orthezia insignis, Douglas, Ent. Monthly Mag., Jan. 1888, p. 170 (¢) (excl. ¢). Hab. Mexico: Vera Cruz (Cockerell); Guanajuato (Dugés) ; Guadalajara (Townsend) ; Aguas Calientes (Townsend); -Izamal (Townsend); at Vera Cruz, on potted plants of Gardenia brought from Orizaba, April 23, 1898 (Townsend).

COCCIN AL. PSEUDOCOCCUS, Westwood.

Coccus, L., was first subdivided by Geoffroy, who uses Chermes (not Chermes, Linn., which is the proper name for Psyl/a) for Lecanium, &c., and restricts Coccus to those species which in the females retain the shape of an insect.” Geoffroy has three species under Coccus, and only one of these, C. phalaridis, is mentioned in the tenth edition of the ‘Systema Nature.’ This must apparently be regarded as the type of Coccus ; it seems to be a Ripersia. See Proc. Acad. Nat. Sci. Phil. 1899, p. 260.

1. Pseudococcus cacti. Coccus cacti, Burm. Handb. der Ent. ii. p. 72 (1839) (nec Linn.).

Hab. Mextco; Guatemata; Honpuras; Satvapor; NIcARAGUA.

For a discussion of its detailed distribution, see Edward Wiepen, JB. d. Hohere Biirgerschule de Stadt Koln, 1889. Burmeister’s type was from Mexico.

The insect described as Coccus cacti by Linneus, Syst. Nat. ed. x. p. 497, which he received from Daniel Rolander, is a Monophlebid, as can readily be seen by consulting DeGeer’s figures of specimens from the same source. ‘The Linnean description is full enough to show that his insect was not the cochineal. Burmeister’s description, and

also his references, pertain to the true cochineal.

2. Pseudococcus tomentosus. Coccus tomentosus, Lam. (opuntie, Licht. MS., Ckll.); Ck. Bull. 4, Techn. Ser., Div. Ent., U.S.

Dept. Agric. (1896) p. 35. Hab. Mexico: Guanajuato and Silao (Dugés). Var. newsteadt, Ckll.: La Puerta

Rancho in Tamaulipas (Townsend).

6 HEMIPTERA-HOMOPTERA.

3. Pseudococcus confusus. Coccus confusus, Ckll. Amer. Nat. 1893, p. 1043.

Hab. Mexico: Cuautla, July 25, 1897 (Koebele, in coll. U.S. Dep. Agric., det. Pergande).

Described from New Mexico.

ERIOCOCCUS, Targ.-Tozz. 1. Eriococcus dubius. Eriococcus dubius, Ckll. Bull. 4, Techn. Ser., Div. Ent., Dept. Agric. (1896) p. 37.

Hab. Mexico: Valles (Townsend).

2. Eriococcus quercus. Rhizococcus quercus, Comst. Rep. U. S. Dept. Agric. for 1880 (1881), p. 340.

Had. Norra America, Florida.—MeExico, Guanajuato (Dugés).

Originally described from Florida.

CEROCOCCUS, Comst.

1. Cerococcus corticis. Cerococcus corticis, Towns. & Ckll. Journ. N. Y. Ent. Soc. 1898, p. 170.

Hab. Mexico, Nogales in Sonora (Koebele).

SOLENOCOCCUS, Ckil.

Solenococcus, Ckll. Bull. Ills. State Lab. Nat. Hist. 1899, p. 392. (Solenophora, Maskell, nec Solenophora, Benth. 1840, nec Solenophorus, Crepl. 1839, nec Solenophorus, Muls. 1840.)

1. Solenococcus koebelei. Solenophora koebelei, Ckll. Ann. & Mag. Nat. Hist., June 1898, p. 429.

Hab. Mexico, Tulare (Koebele).

Mr. E. E. Green (in litt.) suggests that Solenococcus might be merged in Cerococcus, but I think they are sufficiently distinct.

-POROCOCCUS, CkIl.

1. Porococcus tinctorius. Porococcus tinctorius, Ckll. Ann. & Mag. Nat. Hist., June 1898, p. 427.

Hab. Mexico, Amecameca (Koebele).

POROCOCCUS.—DACTYLOPIUS. 7

2. Porococcus pergandei. Porococcus pergandei, Ckll. Ann. & Mag. Nat. Hist., June 1898, p. 427.

Hab. Mexico: Cuautla (Koebele).

CAPULINIA, Sign.

1. Capulinia sallei. Capulinia sallet, Sign. Essai sur les Cochenilles, p. 326 (1875).

Hab. Mexico (Sallé); Arroyo San Isidro, near Frontera (Townsend). See Townsend, Journ. N. Y. Ent. Soc., Sept. 1898, pp. 173-174.

PHENACOCCUS, CkIL 1. Phenacoccus yucce.

Pseudococcus yucce, Cog. West Amer. Scientist, Sept. 1890, p. 44.

. flab. Mexico: many localities. See Townsend, Journ. N. Y. Ent. Soc. 1897, p. 180.

The var. mexvicanus (Ckll.), described from the city of Mexico, is distinguished by the dorsal markings of the body. On April 30, 1898, Townsend found this species (det. Tinsley) on bark of Phytolacca in Mexico city.

2. Phenacoccus helianthi, subsp. gossypii. Phenacoccus gossypii, Towns. & Ckll. Journ. N. Y. Ent. Soc. 1898, p. 170.

Hab. Mexico: Frontera (Townsend); Las Islas del Rio Usumacinta in Tabasco (Townsend); Tlacotalpam, April 19, 1898, on leaves and twigs of Malvaviscus in the plaza (Townsend).

The last-mentioned specimens were determined by Prof. Tinsley.

DACTYLOPIUS, Costa. 1. Dactylopius citri.

Dorthesia citri, Risso, Essai sur Vhistoire naturelle des Orangers (1813).

Hab. Mexico: Orizaba, Cordova, Uruapan, Ario, Cuicatlan, Jacona, and Tacambaro (Segura); Orizaba, on Erythrina, det. Tinsley (Ioebele); Mexico city, on Dracena, det. Tinsley (Koedele). GuatemMata: injuring coffee (Dieseldorff). See Howard and Marlatt, Bull. 18, N. S., Div. Ent., Dept. Agriculture, 1898, pp. 99-100.

2. Dactylopius virgatus. Dactylopius virgatus, Ckll. Entomologist, 1893, p. 178.

Hab. Mexico: Cuautla (Koebele); Tlacotalpam, April 19, 1898, on leaves of

8 HEMIPTERA-HOMOPTERA.

a small palm in a tub at the hotel, also on Croton, at the same place, det. Tinsley (Townsend).

Originally described from Jamaica. It has occurred independently to Prof. Tinsley and myself that this species may possibly be Signoret’s D. indicus; but if this is the case, only the examination of Signoret’s types can prove it.

3. Dactylopius nipe. Dactylopius nipe, Maskell, Trans. New Zeal. Inst. xxv. p. 232. Hab. Mexico: Jicaltepec in Vera Cruz (Townsend).

Not seen by me. Originally described from Demerara.

4. Dactylopius pseudonipe. Dactylopius pseudonipe, Ckll. Science Gossip, April 1897, p. 302.

- Hab. Mexico: Vera Cruz, April 28, 1898, on coco-nut palm; and Coatzocoalcos, April 24, 1898, on a large tree called “laurel”; det. Tinsley (Zownsend).

5. Dactylopius steeli. Bergrothia steelii, Ckll. & Twns. Ent. News, Oct. 1894, p. 263.

Hab. Mexico: “El Paso, Mexico” (? Juarez); det. Tinsley (Koedele). First described from the Mesilla Valley, New Mexico.

6. Dactylopius olivaceus. Dactylopius olivaceus, Ckll. Bull. 4, Techn. Ser., Div. Ent., Dept. Agric. (1896) p. 36.

Hab. Mexico: Ciudad Porfirio Diaz (Townsend).

Found on Yucca.

ASTEROLECANTIN AE. LECANIODIASPIS, Targ.-Tozz.

1. Lecaniodiaspis radiatus. Lecaniodiaspis radiatus, Ckll. Canad. Entom. 1897, p. 269.

Hab. Mexico: near Salina Cruz ( Townsend).

2. Lecaniodiaspis manihotis. Prosopophora manihotis, Towns. Journ. N, Y. Ent. Soc. 1898, p. 172.

Hab. Mexico: Cuautla (Koelele).

ASTEROLECANIUM,—KERMES. 9

ASTEROLECANIUM, Targ.-Tozz.

1. Asterolecanium pustulans. Planchonia pustulans, Ckll. Science Gossip, April 1893, p. 77.

Hab. Mexico: Vera Cruz (Cockerell).

TACHARDITN. TACHARDIA, Blanchard. 1. Tachardia mexicana. Carteria mexicana, Comst. Rep. U. 8. Dep. Agric. for 1881, p. 212. Hab. Mexico: Tampico; Oaxaca (Koebele).

2. Tachardia larree. Carteria larree, Comst. Rep. U.S. Dep. Agric. for 1881, p. 211.

Hab. Mexico: see Comstock, 2nd Rep., Dept. Entom., Cornell Univ. Exp. Sta. (1883) p. 130.

Also occurs at Tucson, Arizona (Toumey and Cockeretl), and at Tempe ( Cockerell).

3. Tachardia fulgens. Tachardia fulgens, Ckll. Psyche, July 1895, Suppl. p. 1. Hab. Mexico: Guaymas, on Mimosa or Prosopis (Koebele) ; Guaymas, on Coursetia (Dr. Palmer); Hermosillo, on Coursetéa glandulosa (Koebele).

Specimens in coll. U. 8. Dept. Agric. Described from Arizona.

4, Tachardia nigra. Tachardia nigra, Towns. & Ckll. Journ. N. Y. Ent. Soc. 1898, p. 172.

Hab. Mextco: Orizaba (Koebele).

5. Tachardia fulvoradiata. Tachardia fulvoradiata, Ckil. Ann. & Mag. Nat. Hist., June 1898, p. 431.

Hab. Mexico: Rancho Carbonel near Frontera (Townsend).

KERMESINA.

KERMES, Boitard.

Kermes, Boitard, Man. d’Entom. 11. p. 171 (1828). Boitard is the earliest author I have yet found using Kermes (not Chermes) as a true generic name, including the species we now refer to it. Of course Kermés, as a popular

term, appears in many earlier works. BIOL. CENTR.-AMER., Rhynch. Homop., Vol. II. Pt. 2, December 1899. f2

10 HEMIPTERA-HOMOPTERA.

1. Kermes grandis. Kermes grandis, Ckll. Ann. & Mag. Nat. Hist., June 1898, p. 431.

Hab. Mexico: Amecameca (Koebele)..

2. Kermes nigropunctatus. Kermes nigropunctatus, Ehrhorn & Cockerell, Ent. News, Oct. 1898, p. 186.

Hab. Mexico: mouth of San Diego Cafion, Sierra Madre, State of Chihuahua, on live oak, May 22, 1899 (Zownsend).

Originally described from California. The Sierra Madre insect resembles the form first received from Mr. Ehrhorn, collected at Los Angeles. Specimens found by

Mr. Ebrhorn at San Jacinto, Calif., April 1889, are very pale and show distinct if shallow transverse sulci.

LECANTINA.

LECANIUM, lllig. 1. Lecanium hesperidum. Lecanium hesperidum (U.), Burm. Handb. der Ent. i. p. 69 (1835).

Hab. Mexico: various localities; see Townsend, Journ. N. Y. Ent. Soc., Dec. 1897, p. 183; Tlacotalpam, on Adutilon in a pot at the hotel (Zownsend).

2. Lecanium terminaliz.

Lecanium terminalia, Ckll. Journ. Inst. Jamaica, 1898, p. 254.

Hab. Muxico: Vera Cruz (Cockerell).

Originally described from Jamaica.

3. Lecanium schini. Lecanium schini, Ckll. La Naturaleza, (2) ii. p. 304 (1893); Bull. Soc. Zool. Fr. xviii. p. 167.

Hab. Mexico: Guanajuato (Dugés); Frontera, on “nancem,” a tree about as big as an apple-tree, with beautiful orange-coloured flowers and an edible yellow fruit about the size of a plum, May 12, 1897 (Townsend).

The egg-shells of this species are covered with little prominences, as seen in the Frontera material. The legs are shorter in the Frontera form than in the type. Also on an Hibiscus-like shrub at Frontera, April 29 (Townsend).

4, Lecanium impar. Lecanium impar, Ckll. Entomologist, 1898, p. 181.

Hab. Mexico: Las Minas in Tabasco (Townsend); San Antonio del Sapotal, Tabasco, on “'T'acog,” June 4, 1897 (Townsend).

LECANIUM. ll

5. Lecanium longulum. Lecanium longulum, Douglas, Ent. Monthly Mag. 1887, p. 97. Hab. Mexico: Frontera, on “nancem,” June 25 (Townsend); Panama, 1898 (Dolby- Tyler).

6. Lecanium sallei. Lecanium sallei, Sign. Essai sur les Cochenilles, p. 240 (1873).

Hab. Mexico (Sallé).

7. Lecanium imbricatum. Lecanium imbricatum, Ckll. Bull. 4, Techn. Ser., Div. Ent., Dept. Agric. (1896) p. 38. Hab. Mexico: Alta Mira in Tamaulipas (Zownsend) ; Frontera, on an unknown tree, May 1897 (Townsend).

Two varieties of this species were also found, as follows :—

L. imbricatum, var. Male scales rather broader and clearer thaw in type. Female apparently without the brown glands.—On a shrub in woods (leaves 6 to 7 inches long, 23 wide, lighter green and not glabrous below), Frontera, Tabasco, April 14, 1897 (Townsend).

L. imbricatum, var. Female scale about 6 millim. long, 32 broad, 2 high ; rather elongate-oval, flattish, dull, pale brown, with very large and deep punctures, except in the middle of the dorsum. The scale itself is shiny, but it is covered by a dirty-looking layer of wax, which gives it a dull and almost woolly appearance. The following measurements (in «) are by Mr. Parrott: femur 39 long by 50 broad; tibia + tarsus 56 long, 42 broad at base. Antenne 75 p long, 45 broad at base, last segment 19 broad at base. Circular glands 14 diameter. Male scales glassy, quite broad, overlapping one another.— Tlacotalpam, April 20, 1898, on branches, twigs, and leaves of limon real,” 4. ¢. shaddock (7Z'ownsend).

8. Lecanium chilaspidis. Lecanium chilaspidis, Ckll. Canad. Entom. 1897, p. 268.

Hab. Mexico: Tehuantepec city (Townsend).

The name of the plant on which this was found, Chilaspis,” is wrong, and is probably a blunder for Chilopsis; nevertheless, the specific name of the insect can

remain.

9. Lecanium tubuliferum. Lecanium tubuliferum, Ckll. Entomologist, 1898, p. 182.

Hab. Mzxico: Amecameca (Koebele). This is a doubtful Lecanium. It may prove to be an immature state of Hermes

grandis.

f2 2

12 HEMIPTERA-HOMOPTERA.

10. Lecanium olez. Kermes olee, Bernard, Mém. Hist. Nat. Provence, ii. p. 275, t. 2. fig. 25 (1788). Hab. Mexico: various localities; see Townsend, Journ. N. Y. Ent. Soc. 1897, p. 184 ; Panama: on Pstdium (Dolby-Tyler).

mirandum, Ckll. & Parrott, subsp. nov.

Q. Scale 34 millim. long, 23 broad, 2 high; hemispherical, with vague but discernible indications of the H-ridges of Z. olee. Brown, varying from a dark chestnut to ochrevus, the lighter forms showing under a lens innumerable yellow specks crowded on a dark ground; in addition, the seale is spotted all over with raised points of white glassy secretion, giving it a remarkably pretty appearance.

Skin with the usual polygonal markings of Saissetia ; the polygons vary from 28 x 47 » to 39 x 42 yw, with the central gland 14x19 to 16x19 p.

Legs with the coxa 99-115 4; femur with trochanter 182-190; tibia 151— 152; tarsus 90-99; claw 16.

Antenne 8-segmented, segments measuring in p:—(1) 39- 42, (2) 33, (8) 59-62, (4) 45-59, (5) 19-39, (6) 17-31, (7) 12-22, (8) 39. One 7-segmented antenna was found, with these measurements :— (1) 39, (2) 36, (8) 59, (4) 56, (5) 17, (6) 25, (7) 47.

Newly-hatched larva (dried) dull brownish orange varying to apricot colour, without markings.

Hab. Mexico: Tlacotalpam in Vera Cruz, April 19, 1898, on Adutilon, sp., in a pot at the hotel (Townsend).

This was described as a distinct species, but since then specimens have been seen which connect it with Z. olew.

11. Lecanium hemisphericum. Lecanium hemisphericum, Vargioni-Tozzetti, Studi sulle Cocciniglie, 1867, p. 27.

Hab. Mexico: Laguna, Carmen I. (Townsend); Panama: on Gardenia (Dolby-Tyler).

This is L. coffee of authors, but probably not of Walker, whose brief description indicates LZ. oleew rather than L. hemisphericum. This was pointed out to me by Mr. Theo. Pergande, who further states that he saw some authentic L. coffee in the Berlin Museum last year, and they were L. olee.

Prof. Townsend has more recently found it at Vera Cruz, Mexico, on potted plants of Gardenia brought from Orizaba.

12. Lecanium tuberculatum. Lecanium tuberculatum, Twns. & Ckll. Journ. N. Y. Ent. Soc. 1898, p. 177.

Hab. Mexico: San Antonio del Sapotal, near Frontera ( Townsend).

13. Lecanium townsendi. Lecanium townsendi, Ckll. Ann. & Mag. Nat. Hist., June 1898, p. 433.

Hab. Mexico: Frontera (Townsend).

14. Lecanium castilloz. | Lecanium castilloe, Ckll. Ann. & Mag. Nat. Hist., June 1898, p. 436. arerre

Hab. Mexico: Frontera (Townsend).

LECANIUM. 13

15. Lecanium nocturnum, Ckll. & Parrott, sp. n.

Closely allied to Z. phoradendri, Ckll., from Arizona.

2. Scale broad-oval, moderately convex, rather rough and somewhat dull, black, irregularly mottled in the subdorsal region with reddish-brown or dull orange ; or occasionally all black. Length 4 millim., breadth nearly 33, height 1.

Young scales are dull olive-green, usually mottled with blackish.

The female after boiling in caustic alkali becomes translucent, and presents a submarginal light brown granular area, on which are many large rounded hyaline spots. (In L. phoradendri the light brown area is much further from the margin, and does not show large hyaline spots, but only scattered hyaline dots.) Marginal spines simple, very slender. Stigmatal spines in threes, the middle (long) one 42 to 56 yu long, the others 11 tod6p. Digitules ordinary; those of claw stout, of tarsus filiform. Antenne 7-segmented. One abnormal antenna was only 6-segmented, with segment 6 53 p long.

Newly-hatched larva (dried) olive-green, with a dark dorsal shade.

3. Scale glossy, as usual in the genus, with a faint greenish tint; two transverse sutures on each side and two at the anterior end.

The following measurements (in ) of ZL. nocturnum and L. phoradendr will be found useful :—

©. Antennal segments ...... 1. 2. 3. 4, 5. 6. 7. LL, nocturnum .....e60.e 36-42 42-47 42 54-56 18 17-20 42-50 L. phoradendri.........- 33-45 42-45 33-42 56-73 17 19 29 Q. Legs ..........000. Coxa. Trochanter and femur. Tibia. Tarsus. Claw. L. nocturnum ...... 99-115 165 90-107 74-82 16-18 L. phoradendri .... 115 165 105 88 24

Hab. Mexico: Alvarado in Vera Cruz, April 22, 1892, on a bush called huele de noche” (Townsend).

The scales are numerous on the bark.

16. Lecanium (Saissetia) inflatum, Ckll. & Parrott, sp. n.

Q. Scale very convex, subglobular; 11 millim. long, 73 broad, 7 high, varying to 83 long, 6% broad, 64 high. Coffee-brown of various shades, sometimes quite a pale (café au lait) colour, fairly shiny, more or less pruinose with white powder, smooth, under a lens seen to be minutely and very closely spotted; extreme sides inclined to be roughened or slightly malleate; margin blackish.

Skin with the polygons of Saissetia, these almost circular, diam, 22-33 4; some are oval, 44 x 25 u, with the central gland 16 x 22 py.

Antenne and legs rudimentary. Antenne 157» long, short and thick, segmentation obscure, end broadly rounded. Last segment 16 » long, 18 broad; penultimate one 14 long, 24 broad; second from last 14 p long, 40 broad; third from last 41 p long, 66 broad. Legs thick and short, femur 59-70 p long, 70 p at broadest; tibia 42 u long, 36 broad; tarsus 28-33 w long, 28-86 » broad at base, 22-25 at end; claw stout and hooked, 14 p long.

3. Scale flattened, transparent, glassy, with a well-defined dorsal area, crossed about the middle of the posterior half by one suture; the usual two transverse sutures on each side from the dorsal area to the margin, and the pair of anterior sutures.

3. Scarlet, with strongly iridescent wings; costal nervure pink.

Hab. Mexico: Coatzocoalcos in Vera Cruz, April 24, 1898, on large tree calied “laurel” (Townsend).

The female scales occur on the branches, the males on the leaves. This is a globular species with the skin of a Saissetia, recalling L. verrucoswm, Signoret.

14 HEMIPTERA-HOMOPTERA.

. Lecanium tolucanum. Leonia (Saissetia) tolucanum, Parrott & Ckll. Industrialist, 1899, p. 164.

Hab. Mexico: Toluca, State of Mexico, on a potato plant, Aug. 1, 1897 Kocbele, 1699).

18. Lecanium sonorense. Lecanium sonorense, Ckll. & Parrott, Industrialist, 1899, p. 161.

Hab. Mexico: Hermosillo, on Beloperone californica, Benth., April 22, 1897 (Koebele, 1711). Subgen. Toumeyeuua, Ckll. 19. Lecanium mirabile. Lecanium mirabile, Ckll. Pysche, July 1895, Suppl. p. 3. Hab. Mexico: Aguas Calientes, May 1, 1898, on Prosopis ( Townsend).

Originally described from Arizona. Subgen. PsEUDOKERMES, Ckll. 20. Lecanium armatum.

Lecanium armatum, Ckll. Ann. & Mag. Nat. Hist., June 1898, p. 436. Hab. Mexico: San Francisco el Real, ‘Tabasco ( Zownsend).

Subgen. Evtecanium, Ckll. 21. Lecanium perditum. Lecanium perditum, Ckll. Canad. Entom. 1897, p. 267. Hab. Mexico: Xcolak in Yucatan (Townsend)

22. Lecanium subaustrale. Lecanium subaustrale, Ckll. Entomologist, 1898, p. 131.

Hab. Mrxico: Amecameca (Koebele).

23. Lecanium armeniacum. Lecanium armeniacum, Craw, Rep. California State Board of Hortic. for 1891 (1892), p. 197.

Hab. Mexico: Guanajuato, on peach (Dugés).

Thad taken this for a form of L. persicw, but Mr. Pergande finds it identical with Californian examples of L. armeniacum, collected by Mr. Ehrhorn.

24. Lecanium quercitronis. Lecanium (Eulecanium) quercitronis, Fitch, Trans. N. Y. State Agric. Soc. 1858, p. 805; Cockerell & Parrott, Industrialist, April 1899, p. 282. Hab. Mexico: Soldado Cafion, Sierra Madre, State of Chihuahua, about 7000 feet, June 7, 1899, on scrub oak (Zownsend).

LECANIUM.—SCHIZOCHLAMIDIA. 15

The specimens belong to a dark and very convex variety, which also occurs in

Southern Arizona.

LECANOPSIS, Targ.-Tozz. 1. Lecanopsis dugesi.

Lecanopsis dugesii, Sign. & Licht. Bull. Soc. Ent. France, 1886, p. xxxix.

Hab. Mxrxico.

This is a very uncertain species, never properly described. It is said to be 4 to 5

millim. long, 3 millim. broad, reddish-brown, covered with a white waxy pellicle: antenne 7-segmented. Quite possibly it is Ceroplastodes niveus.

CEROPLASTODES, Ckll. 1, Ceroplastodes niveus.

Fairmairia nivea, Ckil. Entomologist, 1893, p. 350.

Hab. Mexico: Montezuma in Chihuahua (Cockerell); Mixcoac, on Mimosa, 1897

(Aoebele) ; Aguas Calientes, Jan. 5, 1891 (H. Osborn).

This may have to be called Ceroplastodes dugesi (Sign. & Licht.).

CTENOCHITON, Maskell. 1. Ctenochiton aztecus.

Ctenochiton aztecus, Twns, & Ckll. Journ. N. Y. Ent. Soc. 1898, p. 176.

Hab. Mexico: Arroyo San Isidro, near Frontera (Zownsend).

INGLISIA, Maskell. 1. Inglisia malvacearum.

Inglisia malvacearum, Ckll. Ann. & Mag. Nat. Hist., June 1898, p. 432.

Hab. Mexico: Morelos (Koebele); Cuautla (Koebele).

SCHIZOCHLAMIDIA, CkIL, gen. nov.

Type S. mexicana. A Lecaniine Coccid, lacking legs and antenne in the adult; covered by a glassy scale

which is divided into two parts longitudinally, and has not the rows of air-cells of Inglisia. The scale differs from that of Platinglisia in being convex, and not having the peculiar dorsal groove. It is just like Fairmairia externally, but lacks legs and antenne. It may be remarked that the name Fairmairia, Signoret, 1874, is a homonym of Fairmairia, Desv. 1863. The latter name, however, appears to be obsolete. It was at first intended to call this genus Schizochlamys, but that name belongs to a genus of Algsw. It may be considered permissible to use the same generic name in zoology and botany, but it certainly is not desirable.

1. Schizochlamidia mexicana, Ckll. & Parrott, sp. n.

9. Dark brown, with large ochreous spots, shiny, about 23 millim. long and rather over 2 broad, Lecantum-

like, moderately convex, covered by a semitransparent white glassy scale, which consists of two portions,

16 HEMIPTERA-HOMOPTERA.

being divided longitudinally. Each portion of the glassy scale has a low eminence, from which lines radiate and round which concentric strie run. Removed from the twig, the insect leaves a white mark. Skin after boiling irregularly mottled with brown, translucent. Anal plates in a rounded opening, the margins of which are brown (chitinous) and thickened. Median line with a longitudinal band of minute gland-dots. Anal ring with six bristles. Marginal spines simple, fairly large, numerous, distance from one to the next varying from 33 to 115 p.

Larva with well-developed legs; coxa 34, femora with trochanter 64-98 p, tibia 56-70 p, tarsus 59 p, claw 12 p.

d. Dark reddish-brown ; wings dull hyaline, like ground glass, with a well-defined reddish costal nervure. Length of wing 961; breadth 497 4. Genital spike long, 282 p.

3. Scale about 13 millim. long, glassy, roughened, with no defined dorsal area nor white sutures, but a distinct glassy cap placed dorsally at the hinder end.

Hab. Mexico: Vera Cruz (city), April 28, 1898, on Mimosa with big thorns which are inhabited by stinging ants (Pseudomyrma, sp.) (Townsend).

It is to be remarked that there are two types of male scale among the Lecaniine— that of Lecanium and that of Schizochlamidia, Lecanochiton, and Ctenochiton. In the first there is a well-defined dorsal area, from which radiate transverse sutures, and there is no cap at the hinder end; in the second there is a cap, and the dorsal area is lacking. This difference, combined with certain peculiarities of the female, might be held to indicate two tribes, to be called Lecaniini and Ctenochitonini. The following notes will assist in the further elucidation of this matter :—

CTENOCHITONINI.

Cryptes, having the cap, will fall in this. series, though the ¢ scale is peculiar.

Ceroplastodes dale, Ckll.: ¢ scale glassy, strongly tuberculate all over; the glassy cap exists, but is tuberculate like the rest of the surface, and its suture is hardly discernible.

Ceroplastodes niveus, Ckll.: 3 scale also very rough, but the cap is very distinct, and has on it two whitish lines forming a narrow V; these are also more or less discernible in C. dalee.

L&ECANIINI.

Pulvinaria paradelpha, Ckll. & Lidgett, has a Lecanium-like scale, but with more sutures..

Lichtensia lutea (Ckll.): ¢ scale glassy, transparent, Lecantwm-like, but the dorsal area convex, and only one pair of lateral sutures, those on the posterior half.

Lecanium strachan, Ckll.: ¢ scale has the dorsal area so narrow as to be practically a single ridge, the trans- verse sutures obliterated, and a vaguely indicated small cap. Thus both in the male and female this peculiar species tends towards the Otenochitonini. (For the 9, see Entom. xxxi. p- 259.)

VINSONIA, Sign.

1. Vinsonia stellifera. Vinsonia stellifera (Westwood), Douglas, Ent. Monthly Mag., Dec. 1888, p. 152.. Hab. CentRaL AMERICA.

Mr. Alex. Craw found this on an orchid from Central America, locality unknown.

CEROPLASTES. 17

CEROPLASTES, Gray. 1, Ceroplastes fioridensis. Ceroplastes floridensis, Comstock, Rep. U. 8S. Dept. Agric. for 1880, p. 331.

Hab. Mexico: Balantam in Yucatan (Zownsend); Minatitlan, April 25, 1898, on orange and mango (Townsend); Cordova, April 29, on mango (Townsend); Paraje Nuevo, April 29, on orange (Townsend); Frontera, Febr. 28, 1897, on Ficus laurifolia (Townsend); PaNnaMa: outskirts of the city, on mango, akee, guava, and lime-trees (Dolby-Tyler).

2. Ceroplastes cirripediformis.

Ceroplastes cirripediformis, Comstock, Rep. U. 8. Dept. Agric. for 1880, p. 333. Hab. Mexico,

Specimens from San Rafael, Vera Cruz (Townsend), not seen by me, have been

referred with doubt to this species.

3. Ceroplastes mexicanus. Ceroplastes mexicanus, Ckll. Bull. 4, Techn. Ser., Div. Ent., U. 8S. Dept. Agric. (1896) p. 34.

Hab. Mexico: Guaymas, San Luis Potosi and Tehuantepec city (Townsend) ; Guanajuato, on Duranta plumieri (Duges).

4, Ceroplastes irregularis. Ceroplastes irregularis, Ckll. Entomologist, 1893, p. 351.

Hab. Mexico: Montezuma in Chihuahua (Cockerell). Also found in New Mexico, and even north to Salida, Colorado (Bethel, specimens sent by Gillette).

5. Ceroplastes cistudiformis. Ceroplastes cistudiformis, Ckll. & Twns. Zoe, 1893, p. 104.

Hab. Mexico: Guanajuato (Dugés); Tampico (Townsend); Morenas, Oct. 18, 1897 (Koebele, 1569).

Also found at Clairmont, California, on a pepper-tree (A. J. Cook, in coll. U.S. Dept. Agric.).

6. Ceroplastes roseatus. Ceroplastes roseatus, Twus. & Ckll. Journ. N. Y. Ent. Soc. 1898, p. 177; Dolby-Tyler, Trans. Ent.

Soc. Lond. 1899, pp. 277-280, t. 8. Hab. Mexico: El Cuyo del Chicosapote, near Frontera (Townsend); Panama

(Dolby-Tyler). BIOL. CENTR. AMER., Rhynch. Homop., Vol. II. Pt. 2, December 1899. +3

18 HEMIPTERA-HOMOPTERA.

The Mexican locality is taken from the label, but Prof. Townsend thinks it should be Arroyo San Isidro.

7. Ceroplastes minutus. Ceroplastes minutus, Ckll. Ann. & Mag. Nat. Hist., June 1898, p. 434.

Hab. Mexico: Las Minas in Tabasco (Townsend).

8. Ceroplastes angulatus. Ceroplastes angulatus, Ckll, Ann. & Mag. Nat. Hist., June 1898, p. 434.

Hab. Mexico: Frontera (Townsend).

9. Ceroplastes coloratus. Ceroplastes coloratus, Ckll. Ann. & Mag. Nat. Hist., June 1898, p. 435.

Hab. Mexico: Las Minas in Tabasco (Zownsend).

10. Ceroplastes townsendi, Ckll., sp. n.

9. Waxy scale 6 millim. long, 5 broad, 3 high, flatter than that of C. ceriferus or C. dugesi ; ; wax like that of C. ceriferus, yellowish-white, without plates or coloured nuclei; no lateral white stripes. On the under surface the wax shows very broad bands of chalk-white secretion.

Denuded female 3 millim. long, 2 broad; horn well developed, but hardly half the length of the female.

A high blunt dorsal longitudinal crest, which is quite absent in C. dugeso and C. ceriferus.

Antenne 6-segmented, 4 longest. Claw-digitules with very large knobs. Margin with capitate spines.

The following table separates C. townsendi from its two nearest allies :—

A. Antenne 6-segmented.

a. Segment 3 longest; dorsum of denuded female smooth and rounded . . . . . . . . certferus. b. Segment 4 longest; dorsum of denuded female cristate. . . . woe ee we ee townsend. B. Antenne 7-segmented, 4 longest; dorsum of denuded female smooth . a £00

Hab. Mexico: Arroyo San Isidro, near Frontera, Tabasco, May 27, 1897, on bark of trunk of small shrub with lanceolate-ovate leaves (Townsend: Div. Ent. 7611).

Allied to C. ceriferus and C. dugesi, but differs in the small depressed scale and in the antenne.

11. Ceroplastes dugesi. Ceroplastes dugesii, Townsend, Zoe, ill. pp. 255-257 (1892).

Hab. Mexico: Cuautla (Townsend); San Rafael in Vera Cruz (Townsend); Guana- juato (Dugés).

Lichtenstein briefly noticed, but did not describe, this species in Bull. Soc. Ent. France, 1886, p. cxli. This includes what has been recorded as C. ceriferus (Anders.), Signoret.

CEROPLASTES.—PULVINARIA. 19

12. Ceroplastes albolineatus. Ceroplastes albolineatus, Ckll. Entom. News, 1894, p. 157.

Hab. Mexico: Cuautla, May 31, 1897, on Fuchsia (Koebele: Div. Ent. 7612).

The two lateral white stripes at once separate this pink species from C. roseatus. The fourth antennal segment was long in these specimens, as in the original types.

LICHTENSTA, Sign. 1. Lichtensia lutea. Pulvinaria lutea, Ckll. Ann. & Mag. Nat. Hist., July 1893, p. 51.

Hab. Mexico: Colima, on wild fig (Dr. Palmer: coll. Div. Ent., U. 8. Dept. Agric. 5229); Vera Cruz (Cockerell).

2. Lichtensia crescentiz. Lichtensia crescentie, Ckll. Ann. & Mag. Nat. Hist., June 1898, p. 435.

Hab. Mexico: Frontera (Townsend). Also a slight variety on “achote,” El Cuyo del Chico Sapote, Tabasco, June 18, 1897 (Townsend: Div. Ent. 7842).

3. Lichtensia mimose. Lichtensia mimose, Twns. & Ckll. Journ. N. Y. Ent. Soc. 1898, p. 175.

Hab. Mexico: Las Minas, near Frontera (Townsend).

PULVINARIA, Targ.-Tozz. 1. Pulvinaria simulans. Pulvinaria simulans, Ckll. Journ. Trinidad Field-Nat. Club, 1894, p. 310. Hab. Mexico: Monterey in Nuevo Leon (Townsend).

Specimens from Tehuantepec city, doubtfully referred to P. camellicola, but not seen by me, are probably P. simulans. They were collected by Townsend.

9. Pulvinaria parvula, CkIl., sp. n. @. Seale about 3 millim. long, with ovisac 54 millim. Scale dark reddish-brown ; ovisac white, firm, closely woven, convex in a transverse direction, not ribbed. Immature female ferruginous, having much the shape

of Lecanium hesperidum. | 9. Adult. Marginal spines simple, fairly large, numerous, distance from one to the next about equal to the length of one; length of a spine 33. Skin after boiling colourless and transparent. Coxa 331 p; femur and trochanter 397 ; tibia 232; tarsus 108; claw 33; tarsal digitules filiform, 66 1; claw-digitules expanded to a large knob. Antenne 9-segmented, segments measuring thus in «:—(1) 50, (2) 50,

(8) 116, (4) 83, (5) 50, (6) 83, (7) 48, (8) 33, (9) 50. Hab. Mexico: Cuautla, July 2, 1897, on Mimosa, sp. (Koebele, 1729: Div. Ent. 7921).

Readily known by its small size and 9-segmented antenne. $3 2

20 HEMIPTERA-HOMOPTERA.

CONCHASPINA.

CONCHASPIS, Ck.

1. Conchaspis angreci, var. hibisci. Conchaspis angreci, var. hibisci, Ckll. Bull. 4, Techn. Ser., Div. Ent., U.S. Dept. Agric. (1896) p. 36.

Hab. Mexico: Tampico (Townsend).

2. Conchaspis newsteadi. Conchaspis newsteadi, Ckll. Canad. Entom. 1897, p. 270.

Hab. Mexico: Vera Cruz (Townsend).

DIASPINA.. ASPIDIOTUS, Bouché.

Subgen. Evaspipiotus, Leonardi.

1. Aspidiotus hedere. Chermes hedere, Vallot, Séance Acad. Dijon, 1829, p. 32.

Hab. Mexico: Guadalajara (Townsend); Oaxaca (Hoebele); Chihuahua city (Townsend); Aguas Calientes (Townsend); San Luis Potosi (Townsend); Matamoros (Townsend); Morelia, on ‘‘ trueno,” Dec. 2, 1897 (Zownsend); Mexico city, on trueno,” April 30, 1898 (Townsend). Var. nerit (Bouché): Mexico city, April 30, 1898 (Townsend); Rancho (2), Guaymas, April 27, 1897 (Koebele).

The var. has the female scale white.

2. Aspidiotus vagabundus, CkIL., sp. n.

Q. Scale about 14 millim. diam., circular, very slightly convex, very pale ochreous, or greyish from a coating of extraneous particles ; exuvie halfway between the centre and the margin, marked by a concolorous boss, when rubbed shining straw-colour.

Q. Four groups of circumgenital glands ; anterior laterals of 6 to 8, posterior laterals of 5 to 7. Three pairs of lobes, all short, and rounded at the ends; median lobes considerably the largest, separated by a rather wide interval, in which are two fimbriated squames; second and third lobes quite small, considerably shorter than the squames, which are strongly fimbriated; there are four especially long squames just beyond the third lobe, all deeply serrated on their outer margin ; spines fairly well developed; no glandular processes at the base of the lobes or in the interlobular intervals; anal orifice some distance from the hinder end.

Aspidiotus vagabundus, CKll. Hab. Mexico: Mexico city, on bark of ash, April 30, 1898 (Townsend).

ASPIDIOTUS. 21.

It is hardly possible that this is a native of Mexico, as it belongs to an Old-World group, and apparently comes close to Maskell’s A. dysoxyli. Prof. E. Henry (‘ Feuille des Jeunes Naturalistes,’ June 1898) has indicated an Aspidiotus fraxini from Europe but it proves that the name was based on a Mytilaspis.

Subgen. Drasprpiotus (Berl. & Leon.), Ckll.

3 Aspidiotus townsendi. Aspidiotus townsendi, Ckll. Bull. 4, Techn. Ser., Div. Ent., U. S. Dept. Agric. (1896) p. 82.

Hab. Mexico: Ciudad Porfirio Diaz (Townsend).

Also occurs at Phcenix, Arizona, on Fraxinus (Cockerell).

4, Aspidiotus jatrophe. | Aspidiotus jatrophe, Twus. & Ckll. Journ. N. Y. Ent. Soc. 1898, p. 178; Newell, Contr. Dep. Zool. & Ent. Iowa Agricultural College, no. 3 (1899), p. 23, figs. 5, 6. Hab. Mexico: Frontera (Townsend). Also a variety with lateral exuvie and a convex scale, Frontera, on ‘‘barenjeno chiquito,” June 9, 1897 (Townsend); for this Mr. Wilmon Newell has proposed the name parrottt.

The variety could be taken for A. crawi, but it has not the circumgenital glands of that species. Also a variety with the scale a little smaller, more convex, lighter, with more lateral exuvie, Ometusco, April 29, 1898, on a malvaceous shrub or tree called “malvon,” with crimson flowers (Townsend). Also this species on chaya,” Jatropha, sp., Minatitlan, April 25, 1898 (Zownsend).

5. Aspidiotus subsimilis. Aspidiotus subsimilis, Ckll. Ann. & Mag. Nat. Hist., Febr. 1899, p. 168.

Hab. Mexico: Cuautla (Koebele) ; Hermosillo (Hoebele).

)

yal be ain ay / | O

Aspidiotus subsimilis, Ckll, From Cuautla.

6. Aspidiotus cyanophylli. Aspidiotus cyanophylli, Sign. Essai sur les Cochenilles, p. 93 (1869). Hab. Mexico: Mazatlan, found by Mr. Craw on coco-nuts from that place ; Orizaba, April 29, 1898, on trueno (Townsend); Mexico city, April 30, 1898, on a liliaceous plant. called hiburnio” (Townsend). :

22, HEMIPTERA-HOMOPTERA.

Described by Signoret from specimens found upon Cyanophyllum magnificum, a Venezuelan plant introduced into Europe.

Sect. Hemrpervesia, Ckll.*

7. Aspidiotus cydoniz. Aspidiotus cydonie, Comst. Rep. U. 8. Dept. Agric. for 1880, p. 295. Hab. Mexico: Frontera, on “China tree” (Townsend); Vera Cruz, April 23, 1898, on “huasimo,” a tree (Townsend).

According to Marlatt, A. cydonie is conspecific with A. latanie. Iam not at present able to decide whether the differential characters are varietal or specific.

8. Aspidiotus crawi. ‘Aspidiotus crawii, Ckll. Bull. 6, Techn. Ser., Div. Ent., U. S. Dept. Agric. (1897) pp. 5, 8, 9, 23. Hab. Mexico: Frontera (Townsend); Tlacotalpam, April 21, 1898, on: a wild tree called “‘amate,” with trueno-like leaves, rounded at the end (Townsend).

9. Aspidiotus tricolor. Aspidiotus tricolor, Ckll. Canad. Entom. 1897, p. 266.

Hab. Mexico: near Salina Cruz (Townsend).

10. Aspidiotus palme. Aspidiotus palme, Morg. & Ckll. Ent. Monthly Mag. 1893, pp. 40, 80. Hab. Panama: outskirts of the city (Dolby-Tyler).

11. Aspidiotus lucums#, CkIl., sp. n.

Q. Scale suboval, about 13 by 1 millim., fairly convex, pale yellowish, very rough, the exuvie forming a whitish boss, which is apical but not central. Removed from the bark, the scales leave a distinct white film. In young scales the exuvie exhibit a white dot and ring.

S ® Aspidiotus lucume, Ckll.

@. No group of circumgenital glands. Only one distinct pair of lobes; these large, close together, with the large anal orifice at their base. The second lobe is represented by a minute lobule, easily overlooked.

* On Sept. 28, 1899, Mr. Alex. Craw quarantined at San Francisco some fruits of pomegranate, believed, but not certainly known, to come from Mazatlan. On them were Aspidiotus rapax, Comst., and Chrysomphalus aurantw (Maskell). This is the only evidence for the occurrence of these species in Mexico.

ASPIDIOTUS. 23

Spines and squames well developed, the latter strongly fimbriate. In Leonardi’s table (1897) of Hemi- berlesia this species works down to A. camellic (i. e. rapax), from which it may be separated at once by the form of the scale. It differs from A. cupressi by having the median lobes close together.

Hab. Mexico: Esperanza, April 29, 1898, crowded on the bark of a Mammea Sapota tree (Townsend).

12. Aspidiotus, sp. Hab. Muxico: Juarez, State of Chihuahua, on Melia azedarach, March 6, 1899 (P. J. Parrott).

Also occurs at Deming, New Mexico, on Populus (Cockerell).

This species agrees well with the description of A. convexus, Comst. (Rep. U.S. Dept. Agric. for 1880, p. 295), but I am informed by Mr. C. L. Marlatt that it is different. He will shortly publish a description of it elsewhere.

13. Aspidiotus cupressi. Aspidiotus cupressi, Ckll. Ann. & Mag. Nat. Hist., Febr. 1899, p. 168.

Hab. Mexico: Toluca, on Cupressus (Koebele).

“nic Se MWA Ws A HC

S

Aspidiotus cupressi, Ckll.

14. Aspidiotus latanie. Aspidiotus latanie, Sign. Essai sur les Cochenilles, p. 98 (1869). Aspidiotus greenii, Ckll. Bull. 6, Techn. Ser., Div. Ent., U. S. Dept. Agric. (1897) p. 27, fig. 7. Aspidiotus cydonie, Green, Coccide of Ceylon, pt. i. p. 46 (nec Comst.).

Hab. Mexico: El Cuyo del Chico Sapote, Tabasco (Townsend); Mexico city (Townsend). Subgen. Tareionia, Sign.

15. Aspidiotus yucce.

Aspidiotus yucce, Ckll. Bull. 4, Techn. Ser., Div. Ent., U. 8. Dept. Agric. (1896) p. 32.

Hab. Mexico: Ciudad Porfirio Diaz (Townsend).

Subgen. Myceraspis, CkIl. 16. Aspidiotus personatus. Aspidiotus personatus, Comst. 2nd Rep., Dept. Ent., Cornell Univ. Exp. Sta. (1883) p. 66. Hab. Mexico: Acapulco (found on a coco-nut palm from thence) (Craw); Colima (found on an orange from thence) (Craw); Frontera (Townsend); Minatitlan, April 20, 1898, on mango (Zownsend).

24 HEMIPTERA-HOMOPTERA.

Subgen. SzLEenaspipus, Ckll.

17. Aspidiotus articulatus. Aspidiotus articulatus, Morgan, Ent. Monthly Mag. 1889, p. 352.

Hab. Mexico: Tampico, San Rafael, Laguna, Izamal, and Balantam (Zownsend) ; Vera Cruz (Cockerell) ; Tlacotalpam, April 20, on “limon real,” and April 21, on orange (Zownsend); Minatitlan, April 25, 1898, on Citrus (Townsend); Paraje Nuevo in Vera Cruz, April 29, 1898, on orange (Zownsend); Cordova, April 29, 1898, on mango (Townsend); Soledad in Vera Cruz, April 29, 1898, on tree called ‘“ guayado” or guayano” (Townsend). Panama: on Gardenia (Dolby-Tyler).

Subgen. Psevpaonipi14, Ckll. [Bull. 6, Techn. Ser., Div. Ent., Dep. Agric. p. 14 (1897).]

18. Aspidiotus tesseratus. Aspidiotus (Diaspidiotus) tesseratus, de Charmoy, Proc. Soc. Amicale Scient. (Mauritius), 1899, p- 23,t. 1. figg. 2, 2 a-c.

9. Scale circular to oval, about 3 millim. diam., slightly convex, dull dark sepia-brown, more or less encrusted with black and whitish particles; exuvie about halfway between the centre and margin, or sometimes nearly central, marked by a shining ferruginous boss. A thick ventral film.

@. Dark brown when dried ; after boiling in caustic soda transparent, with lobes, mouth-parts, and interlobular processes dark brown, and a large reticulated space in the anal region light yellow. Form suboval, segmentation well marked ; thorax with a deep constriction as in A. trilobitiformis, Green. No circum- genital glands, even in females full of embryos. Four pairs of lobes, and a small pointed process repre- senting a fifth lobe. Median lobes largest, close together, but not contiguous, broad, equilateral, notched on each side. Second and third lobes with the outer side oblique and notched. Four lobes pointed. Spines large. Many small dorsal glands.

Hab. Mexico: Coatzocoalcos in Vera Cruz, April 24, 1898, on tulipan,” Malva- viscus, sp. (Townsend ).—M avRimIvs.

Aspidiotus tesseratus, de Charm. From Coatzocoalcos.

Allied to A. duplex, Ckll., but easily known by the absence of circumgenital glands.

Since the above description was written, specimens of the same species have been received from Mr. d’Kmmerez de Charmoy, who found it on the grape-vine in Mauritius. Doubtless this is much nearer its original locality than Mexico. |

CHRYSOMPHALUS. 25

CHRYSOMPHALUS, Ashm.

1. Chrysomphalus aonidum. Coccus aonidum, Linn. Syst. Nat. ed. x. p. 455 (1758). Chrysomphalus ficus, Ashm. Amer. Entom. 1880, p. 267.

Hab. Mexico: Tampico, Chihuahua, Matamoros, and Laguna (Zownsend); Vera Cruz (Cockerell); Tlacotalpam, April 19, 1898, on a palm (Zownsend); Orizaba, on *trueno,” April "29, 1898 (Zownsend) ; Vera Cruz, on a coco-nut palm, April 23, 1898 (Lownsend). Panama: introduced on Dictyosperma alba from the Kingston Botanical

Gardens (Dolby-Tyler).

The Linnean description of the female scale is excellent, and can apply to nothing else. This must not be confounded with C. adonidum.

2. Chrysomphalus rhizophorae. Chrysomphalus rhizophore, Ckll, Ann. & Mag. Nat, Hist., Febr. 1899, p. 169.

Hah. Mexico: El Rio Polo, Tabasco, on mangrove (Zownsend).

at

eo oe

ce] °

Chrysomphalus rhizophore, Ckll.

3. Chrysomphalus dictyospermi. Aspidiotus dictyospermi, Morg. Ent. Monthly Mag. 1889, p. 352.

Hab. Mexico: Oaxaca (Koebele); Cuautla (Koebele); ocean beach between El Faro and San Pedro, Tabasco, on rose, June 9, 1897 (Townsend); Minatitlan, on mango (Townsend). Panama: on Dictyosperma alba from the Kingston Botanical Gardens

(Dolby-Tyler).

4, Chrysomphalus persez. Aspidiotus persee, Comst. Rep. U. 8. Dept. Agric. for 1880, p. 305.

Hab. Mexico: Mazatlan (A. de Cima).

5. Chrysomphalus reniformis. Aspidiotus reniformis, Ckil. Canad. Entom. 1897, p. 265.

Hab. Mexico: Tehuantepec city (Zownsend). BIOL. CENTR.-AMER., Rhynch. Homop., Vol. IL. Pt. 2, December 1899. +4

26 HEMIPTERA-HOMOPTERA.

6. Chrysomphalus scutiformis. Aspidiotus scutiformis, Ckll. Ann. & Mag. Nat. Hist., July 1893, p. 48.

Hab. Mexico: Soledad in Vera Cruz (Cockerell); Victoria (Townsend) ; Monterey (Townsend) ; Acapulco, on Citrus fruit from thence (Alex. Craw).

7. Chrysomphalus mimosz. Aspidiotus mimose, Comst. 2nd Rep. Dept. Entom., Cornell Univ. Exper. Sta. (1883) p. 62.

Hab. Mexico: Tampico.

8. Chrysomphalus bowreyi. Aspidiotus bowreyi, Ckll. Ent. News, 1894, p. 59.

Hab. Mexico: Frontera (Zownsend).

Described from Jamaica.

9, Chrysomphalus longissimus. Aspidiotus longissimus, Ckll. Ann. & Mag. Nat. Hist., June 1898, p. 439.

Hab. Mexico: Frontera (Zownsend).

10. Chrysomphalus albopictus. Aspidiotus albopictus, Ckll. Ann. & Mag. Nat. Hist., June 1898, p. 483.

Hab. Mexico: Cuernavaca (Townsend); Cuautla (Koebele). Var. leonis (Twns. & Ckll.): Linares in Nuevo Leon (Yownsend); see Journ. N. Y. Ent. Soc. 1898, p. 179.

11. Chrysomphalus koebelei. Aspidiotus koebelei, Twns. & Ckll. Journ. N. Y. Ent. Soc. 1898, p. 179.

Hab. Mexico: Oaxaca (Koebele).

12. Chrysomphalus agavis. Aspidiotus agavis, Twns. & Ckll. Journ. N. Y. Ent. Soc. 1898, p. 178.

Hab. Mexico: Toluca (Koebele); also collected by Townsend, but locality-label lost.

13. Chrysomphalus biformis. Aspidiotus biformis, Ckll. Canad. Entom., May 1894, p. 13].

Hab. CEentRaL AMERICA.

Mr. A. Craw found this on an orchid from Central America.

Sect. Mrxanaspis, Ckll. 14. Chrysomphalus nigropunctatus. Aspidiotus nigropunctatus, Ckll. Bull. 4, Techn. Ser., Div. Ent., U. 8. Dept. Agric. (1896) p. 31.

Hab. Mexico: San Luis Potosi (Townsend); Apam, April 29, 1898, on trueno” (Townsend); Otumba, April 29, 1898, on “trueno” (Townsend); Rinconada Puebla,

CHRYSOMPHALUS.—FIORINIA, QT

April 29, 1898, on “trueno” (Lownsend); Mexico city, April 30, 1898, on ash (Lownsend) ; Amecameca (Koebele); Mixcoac (Koebele).

a “\ A : s ; °

Chrysomphalus nigropunctatus, Ckll. Chrysomphalus nigropunctatus, CkIl.

15. Chrysomphalus lilacinus. Aspidiotus lilacinus, Ckll. Ann, & Mag. Nat. Hist, , July 1898, p. 26.

Hab. Mexico: Nogales, on black oak (Koebele) ; also on Quercus undulata. Mouth of San Diego Cafion, Sierra Madre, State of Chihuahua, on live oak, May 22, 1899 (LZownsend).

16. Chrysomphalus calurus. Aspidiotus calurus, Ckll. Ann, & Mag. Nat. Hist., June 1898, p. 440.

Hab. Mexico: Orizaba (Koebele); Oaxaca (Koebele).

XEROPHILASPIS, Ckll. This was named as a subgenus of Aspidiotus, but it seems nearer to Aonidia.

1. Xerophilaspis prosopidis. Aspidiotus prosopidis, Ckll. Pysche, Dec. 1895, Suppl. p. 15. Hab. Mexico: Hermosillo, on Prosopis juliflora, April 24, 1897 (Koebele).

Also occurs at Tucson, Arizona (Toumey and Cockerell), and at Phoenix (Cockerell).

PSEUDODIASPIS, CkIl.

1. Pseudodiaspis dentilobis. Aspidiotus dentilobis, Ckll. Ann. & Mag. Nat. Hist., June 1898, p. 438.

- Hab. Mexico: Cuautla (Koebele).

COMSTOCKIELLA, Ckll. 1. Comstockiella sabalis, var. mexicana. Comstockiella sabalis (Comst.), var. mexicana, Ckll. Canad. Entom. 1897, p. 267. Hab. Mexico: region near Mazatlan.

- FIORINIA, Targ.-Tozz. 1. Fiorinia fioriniz. Diaspis fiorinie, Targ.-Tozz. Studi sulle Cocciniglie, 1867, p. 14. Hab. Mexico: in quantity on a coco-nut palm from Mexico (Mazatlan ?), quarantined

‘by Mr. Craw at San Francisco, Febr. 5, 1899. t4 2

28 - HEMIPTERA-HOMOPTERA.

DIASPIS, Costa.

1. Diaspis calyptroides. Diaspis calyptroides, Costa, Faun, Nap., Emitt. Omott. p. 20 (1827). Hab. Mexico: Vera Cruz, on a succulent spiny shrub called “flor de Tampico,” April 28, 1898 (Zownsend); Vera Cruz, on a plant called “siempre viva,” April 28 (Zownsend) ; also from an unknown locality in Mexico, 1897 (Koebele).

Var. opuntiz. Diaspis cacti, var. opuntiea, Ckll. Journ. Inst. Jamaica, 1893, p. 256.

Hab. Mexico: Xcolak in Yucatan (Townsend).

Described from Jamaica.

2. Diaspis persimilis. Diaspis persimilis, Ckll. Canad. Entom. 1897, p. 267. Hab. Mexico: Laguna, Carmen I. (Townsend).

3. Diaspis pentagona. Diaspis pentagona, Targ.-Tozz. Bull. Soc. Ent. Ital. 1887, p. 185. Diaspis amygdali, Tryon, Rep. Ins. and Fungus Pests, 1889, p. 89.

Hab. Panama, on Capsicum (D. G. Fairchild, 1899).

4, Diaspis phoradendri. | Diaspis pharadendri, Ckll. Ann. & Mag. Nat. Hist., June 1898, p, 437. Hab. Mexico: Cuautla (Koebele).

5. Diaspis baccharidis. Diaspis baccharidis, Twns. & Ckll, Journ. N. Y. Ent. Soc. 1898, p- 179.

Hab. Muxico: Amecameca (Koebele).

6. Diaspis townsendi, Ckll., sp. n.

Q . Scale dirty white to snow-white, max. diam, 13 millim., inclined to be more or less oval; exuvie rather dark reddish-brown, varying to yellowish, placed to one side of the centre.

Q. Five groups of circumgenital glands, median of 10, anterior laterals about 20, posterior laterals 9. Median lobes wide apart, strongly diverging, the long rounded inner edge minutely serrate or crenate, the apex projecting beyond the margin. Anal orifice decidedly posterior to posterior lateral glands. Other

- characters of female almost as in Aulacaspis bromelic. 3. Scale with only one keel, and that feeble; in some specimens woolly, resembling a Dactylopiid male pupa.

Hab. Mzxitco: Aguas Calientes, May 1, 1898, on bark of Prosopis ( Townsend); Leon in Guanajuato, May 1, 1898, on Prosopis (Townsend); Silao, May 1, 1898, on Prosopis (Townsend); Santa Barbara in Jalisco, May 1, 1898, on Prosopis (Townsend).

DIASPIS.—AULACASPIS, 29

The specimens were collected as the train stopped at different points on the Mexican Central Railway.

ON

Diaspis townsendi, Ckll. From Silao. Diaspis townsendi, Ckll. From Jalisco,

my b

Diaspis townsend?, Ckll. From Silao. Belongs to a little group consisting of D. townsendi, Ckll., D. toumeyi, Ckll., and D. fagree, Green, between Diaspis and Aulacaspis. The temale resembles Aulacaspis,

but the male scale is as in Diaspis. The species is very variable ; the Silao form is to be considered the type.

AULACASPIS, CkIl. 1. Aulacaspis miranda. Aulacaspis miranda, Ckll. Ann. & Mag. Nat. Hist., June 1898, p. 437. Hab. Mexico: Cuautla and Orizaba (Koebele).

2. Aulacaspis rose. Diaspis rose, Sign. Essai sur les Cochenilles, p. 123 (1869).

Hab. Mexico: Chihuahua (Townsend).

This species was originally described by Sandberg in 1784, but was first named by Bouché.

3. Aulacaspis boisduvali. Diaspis boisduvalii, Sign. Essai sur les Cochenilles, p. 114 (1869). Hab. Mexico: Alta Mira in Tamaulipas (Townsend) ; El Cuyo del Chico Sapote in Tabasco (Townsend). Var. tentaculata (Morgan), on “pitahaya” (a cactus) at Frontera, June 5, 1897 (Townsend). |

4. Aulacaspis bromeliz. Diaspis bromelie, Sign. Essai sur les Cochenilles, p. 116 (1869).

Hab. Mexico: Tlacotalpam, April 21, 1898, on Bromelia pinguin (Townsend).

80 HEMIPTERA-HOMOPTERA.

5. Aulacaspis cattleya, Ckll., sp. n.

2. Scales white, with the exuvie pale and marginal or nearly so. Living female insect plump, white (the juices immediately turn bright yellow in caustic soda). Median lobes &c. as in A. borsduvali, not as in A, bromelie. Circumgenital glands: median 8, anterior laterals 11-20, posterior laterals 11-15.

Hab. Mexico, on leaves of Cattleya; found by Mr. A. Craw, 1899, in the course of

his horticultural quarantine work at San Francisco.

This is possibly a variety of A. boisduvali, but it seems to be a distinct species. It is what has passed as A. cymbidii (Bouché), and is figured by McIntire, Journ. Quekett Micr. Club, ser. 2, iii. pl. xxvi. The real A. cymbidii of Bouché was said to be from - China, and had a yellow female, and the scale “eiformig, flach, mit excentrischen Absatzen, an der zugespitzten Basis braun.” It could hardly have been our insect; possibly it was a Chionaspis.

CHIONASPIS, Sign. 1, Chionaspis citri. Chionaspis citri, Comst. 2nd Rep., Dept. Entom., Cornell Univ. Exp. Sta. (1883) p. 100.

Hab. Mexico: Tampico, San Rafael, Laguna, and Izamal (Townsend); Paraje Nuevo in Vera Cruz, April 29, 1898, on orange (Townsend); Tlacotalpam, April 21, on orange (Townsend).

-HEMICHIONASPIS, Ckll.

1. Hemichionaspis minor. Chionaspis minor, Maskell, Trans. New Zeal. Inst. xvii. p. 33.

Hab. Panama, outskirts of the city, 1898 (Dolby-Tyler). Described first from New Zealand.

PINNASPIS, Ckll.

1. Pinnaspis pandani. Mytilaspis pandani, Comst. Rep. U. 8S. Dept. Agric. for 1880, p. 324.

Hab. PanaMa, introduced from Kingston Botanical Gardens, on hysalidocarpus lutescens, Thrinax excelsa, and Dictyosperma alba (Dolby-Tyler).

HOWARDIA (Berl. & Leon.), Ckll,

1. Howardia biclavis. Chionaspis biclavis, Comst. 2nd Rep., Dept. Entom., Cornell Univ. Exp. Sta. (1883) p. 98. Hab. Mexico: locality unknown.

One of Mr. Craw’s finds. Lately found also by Prof. Townsend, at Minatitlan, on “‘chaya,’ Jatropha, sp., April 25, 1898.

TSCHNASPIS.—MYTILASPIS, 31

ISCHNASPIS, Dougl. 1. Ischnaspis longirostris. Mylilaspis longirostris, Sign. Buil. Soc. Ent. Fr. 1882, p. xxxv. Hab. Panama, introduced from Kingston’ Botanical Gardens, on Rhysalidocarpus lutescens (Dolby- Tyler). PARLATORIA, Sign. 1. Parlatoria proteus, var. pergandei. Parlatoria pergandii, Comst. Rept. U. 8. Dept. Agric. for 1880, p. 327. Hab. Mexico: Matamoros (Townsend). _ Var. crotonis.

Parlatoria proteus, var. crotonis, Douglas, Ent. Monthly Mag., April 1887, p. 242. Parlatoria pergandei, var. crotonis, Ckll. Ann. & Mag. Nat. Hist., July 1895, p. 62.

Hab. Panama (Dolby-Tyler).

PSEUDOPARLATORIA, Ckll. 1. Pseudoparlatoria parlatorioides. Aspidiotus parlatorioides, Comst. 2nd Rep., Dept. Entom., Cornell Univ. Exp. Sta. (1883) p. 64,

Hab. Mexico: Acapulco; Guadalajara, on rose, Dec. 13, 1897; Guanajuato, on peach (Jesus Aleman); Hermosillo, a variety (Aoebele); Frontera, a variety, on Opuntia (Townsend).

2. Pseudopariatoria serrulata. Pseudoparlatoria serrulata, Twns. & Ckll. Journ. N. Y. Ent. Soc. 1898, p. 180. Hab. Mexico: Hermosillo (Koebele) ; Cuautla (Koebele).

MYTILASPIS, Sign. 1. Mytilaspis gloveri. Mytilaspis gloverii (Pack.), Ashmead, Orange Insects (1880), p. 1; Comstock, Rep. U. S. Dept. Agric. for 1880, p. 323.

Hab. Mexico: Tampico, Matamoros, Laguna, Izamal, and Jalapa (Townsend).

In 1898 Townsend found it on orange at Minatitlan, Paraje Nuevo, Tlacotalpam, and Coatzocoalcos. , 2. Mytilaspis becki.

Coccus beckii, E. Newm. Entom. iv. pp. 217, 218 (1869). Mytilaspis citricola (Pack.), Comst. Rep. U. 8. Dept. Agric. for 1880, p. 321.

Hab. Panama, in the city, on orange, in Bolivar Square (Dolby-Tyler).

This species was described and beautifully figured by Richard Beck in Trans. Micr. Soc. ix. (N. 8.) pp. 47-49 (1861). ‘This is nine years earlier than Packard’s insufficient

32 HEMIPTERA-HOMOPTERA.

~ account of the insect (Guide to the Study of Ins. 2nd ed. 1870, p. 527), based merely on Glover’s unpublished figures.

Newman’s Coccus beckii is founded on Beck’s figures and notes, which are unmis- takable. It does not affect the validity of the name that Newman himself, later in the article, confounds the species with Mytilaspis pomorum (i.e. Mytilaspis ulmi = Coccus ulmi, L. Syst. Nat. ed. x. 1758, p. 455).

3. Mytilaspis carinata. Mytilaspis carinata, Ckll. Bull. 4, Techn. Ser., Div. Ent., U. S. Dept. Agric. (1896) p. 45.

Hab. Mexico: Acapulco.

4, Mytilaspis mexicana. Mytilaspis mexicana, Ckll. Ann. & Mag. Nat. Hist., June 1898, p. 4388.

Hab. Mexico: Cuautla (Koebele).

5. Mytilaspis philococcus. Mytilaspis philococcus, Ck\l. Bull. Soc. Zool. Fr. xviii. p. 252.

Hab. Mexico (Koebele); Guanajuato (Dugés); San Cayetano in Guanajuato (ZL. UW. Cockerell). | |

Belongs to the subgen. Opuntiaspis, Ckll.

6. Mytilaspis alba. Mytilaspis alba, Ckll. Ent. Monthly Mag. 1893, p. 156.

Hab. Mexico: Medellin, April 22, 1898, on a common shrubby Solanum 2 (Townsend)

7. Mytilaspis nigra, Ckll., sp. n.

Q. Scale 33 millim. long (exuvie 13 millim.), pitch-black, with a narrow dull white margin; very narrow, very convex in a transverse direction, with a dorsal keel; exuvice elongated, half of first skin on second, first skin dull orange, second skin dull dark reddish-brown.

9. Greatly elongated, yellow, parts turning green in caustic soda; circumgenital glands present, caudolaterals of three, cephalolaterals about four, median doubtful (absent?). Two pairs of well-formed lobes, not particularly large, rounded at ends, with minute lateral lobules ; a separate rounded lobule of fair size just laterad of the second lobe. First interlobular interval wide, occupied by an obliquely-placed trans- versely elongated gland; other such glands are conspicuous along the margin beyond the lobes. Margin beyond the lobes very coarsely and irregularly serrate, with some rather large spines. Cephalic end without spines.

Embryo in female large, with dark blue eyes and 6-segmented antenne.

Larval antenne with segments measuring thus in » :—(1) 11, (2) 7, (3) 11, (4) 7, (5) 9, (6) 26.

Hab. Mexico: Coatzocoalcos in Vera Cruz, April 24, 1898, on leaf of a large tree called laurel” (Townsend).

One scale on the edge of the leaf. Very distinct by the narrow black scale.

XANTHOPHTHALMA.—PROTODIASPIS, 33

XANTHOPHTHALMA, Ckll. & Parrott, gen. nov.

Type X. concinnum. A genus of Diaspine having a peculiar scale, as described below under the species ; and the abdominal margin ending in rounded processes, at the ends of which are small bristles. No squames, No circumgenital glands. Allied, apparently, to Protodiaspis. The female scales resemble the male

scales of other Diaspine, at least in general appearance. The first skin retains the larval antenne as in Diaspis. .

1. Xanthophthalma concinnum, Ckll. & Parrott, sp. n.

Q. Scale very minute, hardly half a millim. long, white, with the first skin bright orange and placed longi- tudinally. The first skin is large for the size of the scale, eye-shaped, with a longitudinal bright orange ridge, and the depressed areas on each side of this blackish, the whole looking like a lizard’s eye, closed. The second skin is placed beneath the first and is inconspicuous. The scale is convex and presents a succession of transverse crests or ridges, so that it seems as if made of a number of discs threaded together. The scale has much the general shape of a Pulvinaria ovisac, with the first skin taking the place of the female Pulvinaria.

Q. After boiling in caustic soda, nearly circular, transparent; the end of the abdomen minutely serrulate, and

ending in six approximately equal rounded processes, on the end of each of which is a small bristle. Anal orifice circular, near the hinder end. Embryo:in female very large.

oon

Aanthophthalma concinnum, Ckll. & Parrott. Xanthophthalma concinnum, Ckll. & Parrott.

d. On the leaf, usually in little pits, were some small white Diaspis-like male scales, with the exuvia at one end, and black. The colour of the exuvia makes us doubt whether they really belonged to Xanthophthalma.

Hab. Mexico: Coatzocoalcos in Vera Cruz, April 24, 1898, on leaves of a large tree called “laurel” (Townsend).

Scales on under surface of leaf, scattered all over in numbers, but not massed, being distributed at rather regular intervals, though five or six are often bunched together.

PROTODIASPIS, Ckll.

1. Protodiaspis parvulus. Protodiaspis parvulus, Ckll. Ann. & Mag. Nat. Hist., June 1898, p. 428.

Hab. Mexico: Amecameca (Koebele).

BIOL. CENTR.-AMER., Rhynch. Homop., Vol. If. Pt. 2, December 1599. 15

INDEX.

[Names in small capitals refer to Families, &c.; those in roman type to the chief reference to each species included in the work ; those in italics to species incidentally mentioned, synonyms, &c.]

Page

ALEURODES ,.......-00000 . dt erigerontis ............ 1 —— mirabilis vo... cece eee 1 —— nicotian® .............. 1 insonioides ............ 1 ALEURODICUS .......eeeeee% 1 —— dugesi ..........0-000e 1 iridescens ..........05- . dt mirabilis .........+..6. 1 ALEURODIDE ....eeeeees re | AONUUA voc eeccccenece ceeeee 27 ASPIDIOTUS wees eee e ce eeeee 20 Asidtotus oo. cee cccceccreces 27 AGAVIS a cecveccervvecs 26

—— .albopictus oc... cececcees 26 —— articulatus ............ 24 DUfOr Mis. ccc ccveveeeenes 26 Dowreyt .. ccc cece ce eeee . 26

——— COLUPUS vec a ccc ececees 27 CaMeLe@ oss cseveees 23 CONVELUS ove cece ee eeees 23 CTAWL. 6 eee eee eens 22 CTAWL oc cn ce twee eee nene 21 ———. CUPFESSL. eee ee eee ee 23 -cyanophylli............. 21 CYCONIB..... eee eee eee 22 ——. CYTOME «oo ce eens beeen 23 ——.dentilobis ....664. ce eeeae 27 AIUCtYOSPEPME vege eeeeees 25

—— duplex ..... ve eeeee eee 24 ——, dys0ryli.. ccc nncceceeee 21 STARING Woe eee eee 21 S| 23 ——.heders# ............ .... 20 ——.jatrophe ...........5.. 21 Koebelet .......- cee eee 26 Jatani@ ..... 6... 23 —— latant@e oo ccc ce cence 22 lilacinus .......-..4. 27

BIOL. CENTR.-AMER., Rhyneh. Homop., Vol. Ll. Pt. 2, April 1909.

, Page

Aspidiotus longissimus ,....... 26 lucum@ ..........0 505 . 22 MUMOBE oo cecsscecvevees 26 = METI vec cccccacceecenes 20 —— nigropunctatus ......... . 26 palm ..........006- «. 22 —— parlatorioides .......... 81 —— PATTOU re rereccnves . 21 POV SCB vec evccceveeeees 25 ——— personatus........eeeeee 23 TAPAL so evvvssceves wee. 22, 23 TENUFOTMIS . 0... 0s seeeee 20 BCULLFOr MIS... eee oe. «26

—— BP. we rere eeeeee veveeee 23 subsimilis ............- . 21 tesseratuS ......,..e00e 24

—— townsendi......... eeeee 21 tricolor ...........008 . 22 trilobiteformts .....++.- . 24 vagabundus ............ 20 yucce ...... betwee wee. 23 ASTEROLECANIINE ..... seeee 8 ASTEROLECANIUM ....0.-00- 9 —— pustulans ..........4... 9 ATULACASPIS 1... eee ee eeees 29 ‘boisduvali...........06- 29 boisdurvalt ....cceereeeee 30 bromeliz ....... bee eee 29 —— bromeli@ ..cscsreveee 28, 30 cattley@ 2... cee eee eee 30 CYMOAMI. Wc cece cevacees 30 —— miranda...............- 29 TOS wee ee reece eee eees 29 tentaculata ........6. . 29 Bergrothia steelit .........00+ 8 CAPULINIA.... 2. sce eee tenes 7 —— sallel ..... cece ee ee eee 7

eee ereresreseees

—— angulatus ...........6. : COTUPETUS vee eeeveeeees . cirripediformis .......... cistudiformis .......... —— coloratus —— dugesi ........ccceeeee floridensis .............. irregularis........ se eaee —— mexicanus.........-.04. minutus............ cone

corte eronee

MIVEUS. oe 00s vec eeeeees Chermes ........ cect eee ee eee heder@ .ociccvccceveacs CHIONASPIS .....-. cee eeeee Btclavts occ ce cee citri

OD

adonidum ......005 sees AQAVIS .eee cesses eee —— albopictus...... been eees —— aonidum . aurantit ——biformis ..............

ever seereoeosee

Ce ee

Page

Chrysomphalus dictyospermi .. ——— flCUB ve reeccercrn cence koebelei .....6..-0005- ——~ LEONE occ eee eens ——lilacinus ............05 ‘longissimus ............ ——— MIMO8H..... eee eee eee nigropunctatus .......... nigropunctatus ......eee- perseze ..... —— reniformis,..........6.+ rhizophore ..........-. scutiformis .......-.06. COCCIDE .ecc cece eee ee recess COCCINAD woe cece eee neces COCCUS. 6 cca e ere ennee adipofera ...... See eeee . aonidum ..... 0 1 ra CACEE Cocca ccc cncereces CONFUSUS voce iveeeeeas ——— OPUNNIE Lecce cee cenes —— phalaridi8 oi... cece eee tomentOSUS civseccceves UME oo cccceiencceeeees CoMSTOCKIELLA ...... sees sabalis, var. mexicana.... CONCHASPINAED occ c cece CONCHASPIS .......:-- veces angreeci, var. hibisci

ne-wsteadi . Cryptes ... CRYPTICERYA ..... australis... cee eee +. TOSB 2. ccc eee eet tee , subsp. mexicana.... CTENOCHITON ......... sees Clenochtton .iccccccacccaees AZLECUS 2... . eee cee Ctenochitonini ........ceeese

ee eee rere on

peer ert ernst ee ee

oe eee et ane

DACTYLOPIUS ........-000- . —— CHET cece eee ce ees INGICUS voces ccccceccces NIp®e ........... —— olivaceus ..........000. —— pseudunipse ............ —— steeli. VIFgatuS..... cee eee eee Diaspidiotus oo... ccc ceeeeee Lesser atus vo. ccc ceseces DIASPINZD occ cee ee eee ees DIASPIS ... cece ee ee eee sees

eee eer ee reer tasene

Diaspis occ eccvccvceeee .. 29,

amygdait ........ vee _=~— baccharidis ............

25 26

26

a

ca |

bo LO bO bO hb aot

orb o

33

28

INDEX.

Diaspis boisduvalti .... bromehe@ ....... —— cacti, var. opuntie

, Var. opuntize

—— fUgr@@ .......605.

fiorini@ .......

townsendi........ townsend? ......4.

Dorthesia citrt ........

ERIOCOCCUS .......... —— dubius ..........

Eulecanium vo. ceceveee

Evaspidiotus ... 000.4.

Farmaria. ccc cis cccces NIVEA voc revcsvcecs

FrIorinia . fiorinie ..........

Hemiberlesia .......... HEMICHIONASPIS......

eee eee erase

IcERYA ... CVAWU vic cnaee ——littoralis ........ ‘maskelli. oo. 0.4.5. ——— MIMOSE oo. e eens —— montserratensis .. palmeri .......... —— purchasi ........ ——riJeyi............

INGLISIA ........00ee -—— malvacearum .... JsSCHNASPIS

KERMES.....

LECANIINE ...

calyptroides ......

eee

——— pentagona........ persimilis ........ —— phoradendri ........ TOS vevvvsaeveeee COUMEYL woe ceecees

quercuS............

POSE ceca vsvervens

longirostris ......

grandis .......... ———— Grands 6... ee eee —— nigropunctatus.... a KKERMESINAE ........68

eee eenaen

Decantint .iccsccccees

ereece oe ee eoeeee eoee eeee Co Ce ee

ee

eee ees

eee ene

eoee a teeee « oe ee « eee eeecee . .

ed or

15

AR ROO R AR BD oo

LECANIODIASPIS ............ —— manihotis .............. radiatuS .........e.e0. LECANIUM. oo. cece cece nena Lecantum vec ccccees armatum ..........e ee ——~— armeniacum............ —— castilloe .............. —— chilaspidis.............. | 0 a ——hemisphericum ........ —— hesperidum ..... hesperidum ........000. —— imbricatum ............ —— impar ......... —— (Saissetia) inflatum...... longulum ............ +s mirabile........ nocturnum .........0e6 —— olex

, subsp. mirandum .. —— perditum ............ +. persice phoradendri ........ eee quercitronis ............ —— (Eulecanium) quercitronis . EY |) schini ........ sonorense SEVACRANT voce ccc cceee —— subaustrale . terminalis ............ tolucanum. ., —— (Saissetia) tolucanum .... townsendi .......+..5.6. tuberculatum .......... tubuliferum ..... ——- VEITUCOSUM 6... eee eee : Lecanochtton occ. e cece eens . LECANOPSIS ......0-.-.ceeee dugesi ................ LICHTENSIA ...........0000, —— crescentia...........6.. ——— lutea .... ce eee eee —$—— UEC occ ccc ce cee eens mimose .,.. Dlaveta vce cece ccc eees QLINUS co cccesrcececeee :

weer evens

ever eeteoreae

Melanaspis ..........045. eee MoNOPHLEBINE ,....... sees MoNOPHLEBUS ..... Monophlebus oi. cccccvcceeces AXINUS ... eee eee eee ee bouvari........ AOrsaus vee cceesees

13

12

12

13

16

Page

Monophlebus mexicanorum,... 2 Primitivus.............. 2

—— raddoni .......... seeeee 8 ——— SP. ceseeecccrececes wee 8 Senet) Eee wees 8 —— SPe cece cece eee eens . 8 Mycetaspis oc... ccc cece eee 6 28 MYTILASPIS .....-...... we Bl Mytilaspis oo... ccc eee 2) -—— alba .............. wae. 82 —— becki ............ .. 3 —— carinata.......... . . 82 —— citricola....... sees 31

—— gloveri .....

mexicana ... NIQTA 2.6.00

—— pandani......

—— philococcus .

—— UNE wraeene

Opuntiaspis ..... ORTHEZIA .......

sonorensis ...

ORTHEZIINE ..eeeseees

Ortonia ..cceeces bouvart ..... mexicanorum

PARLATORIA ......

insignis ......

longirostris ..

POMOTUM wiaee

ee

eee » 382 ve eeee .. 380

cesses 82 weceeeee 82 beceeeree O2 seveeeee O veceeeeee O

ws PVIMUeiVa visccccceeeree 2

~—— pergandet, var. crotonis .. 3

pergandtt ..vcccereceees SL

—— proteus, var. crotonis .... 31

, var. pergandei .... 31

INDEX.

P

PHENACOCCUS ..ceeeeeeeeeee GOSSYPU wovsecveeveveres helianthi, subsp. gossypii . MEXTCANUS occ vevcceceees VUCCE eee cece eee eens PINNASPIS.. ceeeeccceeeseeee pandani ..........e.e0s Planchonia pustulans......- Platinglista vicceccceveccues

POROCOCCUS 0. cece ee eee ee . pergandei ............ .. tinctorius ..............

Prosopophora manthotis ..... .

Proticeryd voc cceccccveccces .

PROTODIASPIS ........00005 . parvulus .......e ee eee

Protortonta vecccccevcccvces PTUMIUELVA covccceveccees

Pseudaonidta oo... cece cece

PSEUDOCOCCUS ......0 06: ee

—— CALE vce ce ec cceneees confusus ...........6.. —— newsteadt ........ Sees —— tomentosus ........00.. YUCCE ve ceernccccereues PSEUDODIASPIS....-00-2 e000. dentilobis .............. Pseudokermes.....sccveecvees PsEUDOPARLATORIA.......- .. parlatorioides .......... serrulata ............ a Psyll vc vcceccvecceccavcaes PULVINARIA woe cece cece ence

PulvVinaria voccccccccqecceecs

camellicola ..v.ceee sees

lubed vevcaveceverecces —— paradelpha s.vcccessees

~ Naa GS

cw Oo

Hm CO DN G Tis ©

37

Page

Pulvinaria parvula .......... 19

Rhizococeus quercus ... 00004. RUpersid vc csevcceccvvees ..

Satssettd . ccc ccccecerevacee SCHIZOCHLAMIDIA ......+-

Schizochlamidia ...... sees

mexicana .......... ve Schizochlamys ....ee. eens

Selenaspidus ......0eceeeees SOLENOCOCCUS.........- bees —— koebelei ...... neces

Solenophora .......eeeees

TACHARDIA ....c cece eens

—— fulgens ............4- —— fulvoradiata ..........

—— larree ..........00..

———— Mexicana ........006-- ——nigra......... ceveees TACHARDIINE .........05. TArgionta wi. eee cc cc cenee Towmeyella... ccc cece cecas

VINSONIA 2... cece eee eee stellifera ............

XANTHOPHTHALMA........

concipnum .......... XEROPHILASPIS .......... prosopidis ............

PRINTED BY TAYLOR AND FRANCIS, RED LION COURT, FLEET STREET.

Koebelet . 6... cee cece Solenophorus ......0 0c cece eee

simulans ..........-20+ 19

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